Filter.



. Patented 030.9, i902. J. KUSTALEK.

FIL T E R.

(Application led HM. 20, 1902.)

(No Modei.)

2 Sheets-Sheet I.

Wtnesses.

me mams PETERS co., Pixmania. msmamn, n, c.

Patentedy Dec. 9, |9092. J. KosTLEK.

No. 7l5,275.

FILTER.

(Applcationled Mar. 20, 1902.)

2 SheetsShee 2.

(No Model.)

Inventor. JWM

Wtnesses.

Atty.

UNTTED STATES PATENT OFFICE.

JOSEF KOSTLEK, OF VINOHRADY-PRAGUE, AUSTRIA-HUNGARY, ASSIGNR TO SOCIETY MASCHINENBAU ACTIEN GESELLSCHAFT, VORMALS BREIT- FELD, DANEK it CO., AKVIOVA SPOLECNEST STROJIRNY DRIVE BREIT# FELD, DANEK A SPOL KARLIN, OF BOHEMIA, AUSTRIA-HUNGARY.

FILTER.

SPECIFICATIGN forming part of Letters Patent No. 715,275, dated December 9,1 902.

Application filed March 20, 1902. Serial No` 99,107. (No model.)

To all whom, t may concern,.-

Beit known that I, JOSEF KOSTLEK, a suhject of the Emperor of Austria-Hungary, residing at Vinohrady-Prague, in the Kingdom of Bohemia, Austria-Hungary, have invented a new and useful Filter, of which the following is a specification.

My invention relates to improvements in filters for juices and liquids in general; and 1o the objects of my invention are, iirst, to provide artificial filters with large capacities for industrial purposes, and particularly for the purposes of sugar-factories and sugar-mills, where sugar-juices can be filtered after the requirement of such industries, either in open vessels or in covered vessels when they are working in highly-rareded air; secondly, to provide filters with cheap ltering materials and media through which large quantities zo of liquids iiow with constant or nearly constant velocities throughout the whole mass for the purpose of obtaining the highest filtering eect; third, to afford facilities for filling and emptying the filtering medium. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a vertical longitudinal section through a lter embodying my invention with screens omitted. Fig. 2 is a top plan view of 3o the filter, partly in horizontal section. Fig. 3 is a vertical transverse section through Fig. l. Fig. 4c is avertical transverse section through a single stack of tubes, and Fig. 5 is a transverse section of one of said tubes on an enlarged scale.

Similar numerals refer to similar parts throughout the several views.

l 2 3 4 is a reservoir with a horizontal or nearly horizontal bottom and four vertical 4o or nearly vertical walls. This reservoir is open on its top, or, in other cases, it is closed with a cover 6. There are a series of horizontal tubes 7 in the middle of this reservoir, placed one over the other, which are or may be open at both ends, by which they are fastened into vertical walls 8 and 9. To both sides of these tubes and near the side walls of said reservoir are placed two sieve-walls 10 and l1, and the reservoir-space between these sieves is filled with sand (see Fig. 3) or 5o any other appropriate filtering medium, as the case may be. These sieves are attached to raised ribs ll, leaving a space between them and the adjacent side walls in which the filtered fluid collects. It will be understood that other vertical or nearly vertical sieve-walls l2, dac., may be interposed between the sieve-walls l0 and ll and the tubes 7, and the space between them may be filled with different kinds of filtering medium, so 6o as to obtain different ltering strata, just as may be required'in each special case.

The tubes 7 are split or provided with holes over their whole length. The liquid to be filtered enters by theopen ends or by one end of said tubes and liows through the splits 0r holes of the tubes' into the filtering-space and through the filtering medium and the sieves 10 11 l2, 85e., into the free space between the side walls and the sieves, leaving its sedi- 7o ments in the filtering medium. The trajectory of the liquid has everywhere the same velocity and the same direction, and by this reason its velocity in every filtering-point is practically constant, and therefore also as small as possible.

The openings of the tubes into the filteringspace are preferably placed on the bottom part of their surface to avoid the incumbrance of sand or the particles of the filtering me- 8o dium. The drawings showv the well-known split tubes, Fig. 5, which are for the same reason turned with their splits, la downward.

The drawings show tubes 7, which are open only at one end, the liquid flowing into them on the open end only. All tubes are fed from one space V13, common to all of them, into which the filtering medium cannot enter. In some cases another such tubular vessel 13 is connected with the opposite ends of the tube 9o as well, which in this case would be open, and the liquid iiows into the tubesfrom both ends. This case is not represented in the drawings.

19 is the inlet for the liquid to be filtered.

l5 and 16 are the outlets from whence the 95 filtered liquid flows after having been freed from its sediments, which remain in the ltering medium or media in its or their difterent strata. The tubular vessel 13 is provided with a cover, which allows an easy cleansing of its contents.

The iltering-reservoi r is provided under its bottom with a sewer-tube 17,which is inclined toward the outlet, which is closed by a stopper 18. As soon as this outlet is open the filtering medium flows out from the filter, which then may be cleansed and filled anew with fresh sand or any other appropriate filtering medium or media after shutting up the outlet. In thus drawing off the sand the central chamber between sieves 12 will first be emptied, when these sieves can be readily removed, allowing the chambers on either side thereof between said sieves and sieves 10 and 11 to discharge their contents.

In cases where the filter is interposed between two evaporating-batteries, as this occurs, for instance, in the sugar-factories, it works in strongly-rareed air, and a cover 6 is needed, which must be perfectly air-tight.

I am aware that prior to my invention thereof different filters have been invented in which the liquids were led through the iiltering medium or media which was or were contained in a filtering-space and divided into dierent filtering strata. I therefore do not claim such a combination broadly; but

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination,in a filtering-reservoir, of a series of horizontal tubes having openings along their length, and located centrally of the reservoir, a ltering medium packed around said tubes and wholly covering them, a duid-chamber 13 opening' into the ends of said tubes and from which the iiuid is forced therethrough and into the filtering medium, vertical sieves 10, 11 arranged at the sides of the reservoir, free spaces cut off from the filtering medium thereby, and outlets 15, 16 leading from said free spaces.

2. The combination,in a filtering-reservoir, of-'a series of horizontal tubes having openings along their length and located centrally of the reservoir, a fluid-feed chamber 13 opening into the ends of said tubes; vertical sieves 10, 11 arranged at the sides of the reservoir, free spaces between said sieves and the adjacent walls of the reservoir, fluid-outlets leading from said spaces, intermediate parallel sieves dividing the reservoir into cornpartments, one of which includes the series of tubes, and liltering material filling all of said compartments including the compartments occupied by the tubes.

3. The combination,in a filtering-reservoir, of a series of horizontal tubes having openings along their length and located centrally of the reservoir, a Huid-feed chamber, 13, opening into the ends of said tubes, vertical sieves, 10, 11, arranged at the sides of the reservoir, free spaces between said sieves and the adjacent side walls of the reservoir, iiuidoutlets leading from said spaces, intermediate parallel sieves dividing the reservoir into compartments, one of which includes the series of tubes, filtering material filling all of said compartments, and a plugged sewer-tube leading from the bottom of said reservoir, by means of which the filtering material may be let out. 4

In witness whereof I have hereunto set my hand in presence of two witnesses.

.JOSEF KOSTLEK.

Witnesses:

LADIsLAvv VOJIEK, ADoLPH FISCHER. 

